Guralp-systems CMG-1T Manual do Utilizador descarregar pdf (Página 32)

CMG-1T Ocean Bottom Seismometer Operator’s

Guide

Section 9, Page 2 September 1999,

Issue C

It is recommended that ceramic spacers with nylon shoulder washers are used to

achieve a very high degree of insulation resistance, >>100MΩ.

IMPORTANT Care must be taken not to rest the levelling system on it’s base

without spacers as wiring which exists at the bottom of the

levelling system might be damaged.

The installation of the levelling system together with the sensor requires care

and precision. If the installation method within a casing is not completely

straight forward Güralp Systems Limited will be prepared to comment on your

particular design.

The levelling system can also be installed in a 17” glass sphere. A drawing of

the overall glass bowl and levelling system is given in the following diagram.

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Guralp-systems CMG-1T Manual do Utilizador Página 32